PCR

PCR
  • 文章类型: Journal Article
    自发性早产被定义为怀孕第37周之前出生过程的开始。胎膜中微生物的存在伴随着前列腺素产量的增加,与早产患病率相关的重要因素之一。微生物的入侵导致蛋白酶的产生,凝固酶,和弹性蛋白酶,这直接刺激了分娩的开始。我们调查了生殖器感染在早产妇女中的作用。
    本病例对照研究是在伊朗西部对100名自发性早产妇女(妊娠24周后和36周零6天之前)作为病例组进行的,100名正常分娩的妇女作为对照。采用问卷收集数据。对胎盘进行聚合酶链反应和病理检查。
    正常分娩妇女的平均年龄(30.92±5.10),自发性早产妇女(30.27±4.93)。沙眼衣原体的患病率,淋病奈瑟菌,单核细胞增生李斯特菌,两组生殖道支原体感染均为零。在病例组中,阴道加德纳菌的患病率最高,为19(19%),在对照组中为小脲原体15(15%)。此外,胎盘炎症在对照组中为零,在患者组中为7(7%)。阴道加德纳菌与自发性早产之间存在显着关系。
    我们的研究结果表明,除了阴道加德纳菌,上述细菌感染与自发性早产无明显关系。此外,尽管在这项研究中许多性传播感染的患病率显着降低,仍然建议提高人们的意识,包括孕妇,关于妇科医生和健康治疗中心传播它的方式。
    UNASSIGNED: Spontaneous preterm delivery is defined as the beginning of the birth process before the 37th week of pregnancy. The presence of microorganisms in the fetal membranes is accompanied by an increase in the production of prostaglandin, one of the important factors associated with the prevalence of preterm birth. The invasion of microorganisms leads to the production of protease, coagulase, and elastase, which directly stimulate the onset of childbirth. We investigated the role of genital infections in women with preterm birth.
    UNASSIGNED: The present case-control study was conducted in the west of Iran on 100 women with spontaneous preterm delivery (following 24 weeks of gestation and before 36 weeks and 6 days) as the case group and 100 women with normal delivery as controls. A questionnaire was applied to collect the data. Polymerase chain reaction and pathological examination of the placenta were performed.
    UNASSIGNED: The average age in women with normal delivery (30.92 ± 5.10) in women with spontaneous preterm delivery (30.27 ± 4.93). The prevalence of Chlamydia trachomatis, Neisseria gonorrhea, Listeria monocytogenes, and Mycoplasma genitalium infections was zero in both groups. The highest prevalence of Gardnerella vaginalis was 19 (19%) in the case group and Ureaplasma parvum 15 (15%) in the control group. Also, Placental inflammation was zero in controls and 7(7%) in the patient group. There was a significant relationship between Gardnerella vaginalis bacteria and spontaneous preterm delivery.
    UNASSIGNED: The results of our study showed that except for Gardnerella vaginalis bacteria, there is no significant relationship between the above bacterial infections and spontaneous preterm birth. Moreover, despite the significant reduction in the prevalence of many sexually transmitted infections in this research, it is still suggested to increase the awareness of people, including pregnant women, about the ways it can be transmitted by gynecologists and health and treatment centers.
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  • 文章类型: Journal Article
    犬支原体在犬生育障碍中的作用仍然知之甚少。由于感染通常是无症状的,越来越需要适当的诊断方法和治疗计划,以可靠地检测犬分枝杆菌感染并快速缓解患病犬的感染症状.在这项研究中,我们纳入了14只存在生育问题的狗和16只没有生育障碍迹象的狗.我们比较了两组之间的临床检查数据和选定的实验室参数(血液学和生物化学)。我们对从阴道和包皮拭子中分离的DNA进行了基于PCR的犬分枝杆菌检测和基于16SrRNA基因的微生物区系分析。测试狗血清中是否存在犬分枝杆菌特异性抗体。血液学和选定的生化参数显示组间没有差异。基于PCR的样品中犬分枝杆菌的检测与16S微生物区系分析的结果一致。还确定了可能与不同的生育障碍有关的其他几种细菌分类群。血清学方法不够准确,因为观察到高交叉反应率。在未来,需要更准确和有效的方法来确定犬分枝杆菌的作用及其在狗特定生育障碍发病机理中的真正作用。
    The role of Mycoplasma canis in canine fertility disorders is still poorly understood. As infection is often asymptomatic, there is an increasing need for appropriate diagnostic methods and treatment plans that would allow the reliable detection of M. canis infection and rapid alleviation of infection symptoms in affected dogs. In this study, we included 14 dogs with fertility problems and 16 dogs without fertility disorder signs. We compared clinical examination data and selected laboratory parameters (hematology and biochemistry) between the groups. We performed PCR-based detection of M. canis and 16S rRNA gene-based microbiota profiling of DNA isolated from vaginal and preputial swabs. Dog sera were tested for the presence of M. canis-specific antibodies. Hematological and selected biochemical parameters showed no differences between groups. PCR-based detection of M. canis in the samples was consistent with the results of 16S microbiota profiling. Several other bacterial taxa were also identified that could potentially be involved in different fertility disorders. Serological methods were not accurate enough since high cross-reactivity rates were observed. In the future, more accurate and efficient methods will be needed to determine the role of M. canis and its true role in the pathogenesis of specific fertility disorders in dogs.
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  • 文章类型: Journal Article
    背景:脑结核瘤(BT)的诊断有时具有挑战性。在这里,我们提出了一个案例系列来评估联合诊断方法,包括抗酸杆菌(AFB)染色,聚合酶链反应(PCR),基因Xpert,和组织病理学,结核瘤组织标本(TTSs)。患者和方法:共有16例患者(11例人类免疫缺陷病毒[HIV]阳性,本研究包括通过TTS的联合诊断方法证实的5个HIV阴性)和BT。临床数据,包括临床症状,实验室测试,神经影像学特征,组织病理学,治疗,和预后,对所有患者进行评估。结果:男性10例,女性6例(范围,18-73岁)。11例和10例患者的抗酸杆菌染色和TTSsPCR均为阳性,分别。TTS基因Xpert的敏感性为(80.0%;8/10)。9例(56.3%;9/16)患者通过组织病理学诊断为BT。在接受抗结核治疗后,12例(75.0%;12/16)患者在临床上有相当大的改善。结论:TTS的联合诊断方法可提高BT的诊断效率。
    Background: The diagnosis of brain tuberculoma (BT) is sometimes challenging. Herein, we presented a case series to evaluate the combined-diagnostic methods, including acid-fast bacilli (AFB) stain, polymerase chain reaction (PCR), Gene Xpert, and histopathology, of tuberculoma tissue specimens (TTSs). Patients and Methods: A total of 16 patients (11 human immunodeficiency virus [HIV]-positive, 5 HIV-negative) with BT confirmed by combined-diagnostic methods of TTS were included in this study. Clinical data, including clinical symptoms, laboratory tests, neuroimaging features, histopathology, treatment, and prognosis, were assessed in all patients. Results: There were 10 male and 6 female patients (range, 18-73 years). Acid-fast bacilli stain and PCR of TTSs were positive in 11 and 10 patients, respectively. The sensitivity of Gene Xpert of TTSs was (80.0%; 8/10). Nine (56.3%; 9/16) patients were diagnosed with BT by histopathology. After receiving antituberculosis treatment, 12 (75.0%; 12/16) patients improved clinically to a considerable extent. Conclusions: The combined-diagnostic methods of TTS may improve the diagnostic efficiency of BT.
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  • 文章类型: Case Reports
    一个成年马的临床病例,溃疡性,增殖性,提出了肩部区域皮肤(肿瘤)的脓性肉芽肿病。肿块呈肉芽肿状和火山口状,有血清血排出物和有干酪样物质的瘘管。手术切除肿瘤,送实验室诊断。组织病理学使用Grocott-Gomori次甲基胺银染进行。坏死物质的存在,纤维化,浸润细胞,和棕色的菌丝,Pythium属成员的特征,被观察到。为了识别感染物种,进行了用于扩增ITS-1的常规PCR。组织病理学和PCR测试证实了与美国和中美洲以前的记录密切相关的煤腐菌菌株感染。我们的报告代表了墨西哥第一个分子确认的马化脓症病例。
    A clinical case of an adult horse with invasive, ulcerative, proliferative, pyogranulomatous disease of the skin (tumor) in the shoulder region is presented. The mass had a granulomatous and crater-shaped appearance, with serosanguinous discharge and the presence of fistulas with caseous material. The tumor was removed by surgery and sent to the laboratory for diagnosis. Histopathology was performed using Grocott-Gomori methenamine silver stain. The presence of necrotic material, fibrosis, infiltrated cells, and brown-colored hyphae, characteristic of members of the genus Pythium, were observed. To identify the infecting species, conventional PCRs for the amplification of the ITS-1 was carried out. Histopathological and PCR tests confirmed infection by a Pythium insidiosum strain closely associated with previous records from the US and Central America. Our report represents the first molecularly confirmed case of equine pythiosis in Mexico.
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  • 文章类型: Case Reports
    我们描述了一个居住在约翰内斯堡的女性的典型鼻鼻孢子虫病病例,南非,但起源于东开普省的一个农村地区。我们使用PCR测试确认了组织学诊断,并将详细信息与南非其他17例病例的记录进行了比较。
    We describe a classic case of nasal rhinosporidiosis in a woman who resided in Johannesburg, South Africa, but originated from a rural area in Eastern Cape Province. We confirmed histologic diagnosis using PCR testing and compared details with those from records on 17 other cases from South Africa.
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  • 文章类型: Journal Article
    背景:糖尿病足的伤口愈合过程受到促炎和抗炎标志物的影响,炎症反应的任何破坏都会干扰组织的稳态,导致慢性非伤口愈合。
    目的:本研究旨在确定CRP的诊断价值和作用,IL-6,TNF,和HbA1c对糖尿病足溃疡的开始和进展。
    方法:ELISA用于定量IL-6,TNF,CRP,205名糖尿病患者的HbA1c,105人没有糖尿病足。还评估了糖尿病足的患病率和进展。使用接受者工作特征(ROC)曲线计算曲线下面积(AUC)以分析预测值。使用正向逐步逻辑回归分析来计算比值比(OR)和相应的95%置信区间(CI)。
    结果:CRP,发现IL-6和FBS是糖尿病足的重要预测因子(OR=1.717,95%CI=1.250-2.358,P=0.001;OR=1.434,95%CI=1.142-1.802,P=0.002;OR=1.040,95%CI=1.002-1.080,P=0.037)。分别。CRP的AUC,预测糖尿病足的IL-6和HbA1c分别为0.839、0.728和0.834,对每个诊断标记物都有良好的预测价值。
    结论:目前的研究表明,IL-6,CRP,HbA1c可能是指示糖尿病足进展的有用生物标志物。此外,我们的研究结果显示,糖尿病足患者的CRP和HbA1c之间存在显著关系.
    The wound-healing process in diabetic foot is affected by pro and anti-inflammatory markers, and any disruption in the inflammatory reaction interferes with tissue homeostasis, leading to chronic non-wound healing.
    This study aimed to determine the diagnostic value and effect of CRP, IL-6, TNF, and HbA1c on initiation the and progression of diabetic foot ulcers.
    ELISA was used to quantify IL-6, TNF, CRP, and HbA1c in 205 patients with diabetes, and 105 were diabetic foot free. The prevalence and progression of diabetic foot were also evaluated. The area under the curve (AUC) was calculated using the receiver operating characteristic (ROC) curve to analyze the predictive values. Forward stepwise logistic regression analysis was used to compute the odds ratio (OR) and the corresponding 95% confidence intervals (CIs).
    CRP, IL-6, and FBS were found to be significant predictors of diabetic foot (OR=1.717, 95% CI=1.250-2.358, P=0.001; OR=1.434, 95% CI=1.142-1.802, P=0.002; and OR=1.040, 95% CI=1.002-1.080, P=0.037), respectively. The AUCs for CRP, IL-6, and HbA1c in predicting diabetic foot were 0.839, 0.728, and 0.834, respectively, demonstrating a good predictive value for each diagnostic marker.
    The current study demonstrated that IL-6, CRP, and HbA1c may be useful biomarkers to indicate diabetic foot progression. Furthermore, our findings showed a substantial relationship between CRP and HbA1c in individuals with diabetic foot conditions.
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  • 文章类型: Case Reports
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  • 文章类型: Case Reports
    这项研究报告了在哥伦比亚成功诊断和治疗的绿龟Cheloniamydas中的第一例纤维乳头状瘤病(FP)。全球,FP已达到热带和亚热带水域海龟的流行病比例,在严重的情况下,它降低了生存的可能性。由于肿瘤复发需要多次手术切除,因此治疗一直难以捉摸。在这种情况下,通过DNA聚合酶(DNApol)基因的扩增和测序,通过组织病理学和类疱疹病毒5(ChHV5)的分子检测诊断出一只患有多种肿瘤的绿海龟。应用了由自体疫苗和手术切除组成的两种单独的治疗方法;第一种方法部分成功,因为治疗后3个月后重新出现了一种肿瘤。治疗2由富含佐剂的自体疫苗组成,并以增加的剂量施用。之后,肿瘤的大小明显减小,并通过手术切除。在6个月的随访期结束时,没有观察到肿瘤复发,乌龟处于明显的最佳健康状况。这些发现,虽然有限,建议一种可能的治疗方法,可能有助于遏制这种流行病问题。
    This study reports the first case of fibropapillomatosis (FP) in the green turtle Chelonia mydas that has been successfully diagnosed and treated in Colombia. Worldwide, FP has reached epizootic proportions as it has been reported in marine turtles of tropical and subtropical waters, and in severe cases, it reduces the probability of survival. Treatment has been elusive as multiple surgical excisions are needed due to tumor recurrence. In this case, one green turtle with multiple tumors was diagnosed by histopathology and molecular detection of the chelonid herpesvirus 5 (ChHV5) by means of amplification and sequencing of the DNA polymerase (DNApol) gene. Two separate treatments that consisted of autogenous vaccines and surgical excisions were applied; the first one had a partial success as one out of the tumors treated reappeared after 3 months post-treatment. Treatment 2 consisted of an autogenous vaccine enriched with adjuvants and applied at increasing doses, after which, the tumor significatively decreased in size and was surgically removed. At the end of the 6 months follow-up period, no tumor recurrence was observed, and the turtle was in apparent optimal health conditions. These findings, although limited, suggest a possible treatment that might help to contain this epizootic problem.
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  • 文章类型: Journal Article
    背景:肽受体放射性核素治疗(PRRT)是胰腺神经内分泌肿瘤(PNETs)促生长素抑制素受体阳性的不可切除肝转移的一种新的有效治疗选择。然而,对于最初无法切除的PNET肝转移,在PRRT后转为可切除的,很少有手术切除的报道。在这里,我们报告了一例PRRT和生长抑素类似物(SSA)导致PNET切除后最初无法切除的多发性肝转移的病理完全反应。
    方法:一名52岁男子在40岁时接受了保留幽门的胰十二指肠切除术,随后在44岁和47岁时接受了可切除的肝转移肝切除术。在48岁时,随访检查发现无法切除的多发性肝转移,并开始使用177Lu-DOTATATE治疗的PRRT。经过四个周期的PRRT,根据影像学研究,大多数肝转移瘤减少了,剩下的两个肝脏病变继续缩小与额外的lanreotide。成功进行了肝转移转化手术,显示组织标本中没有活的肿瘤细胞。手术后17个月,影像学检查未发现肿瘤残留或复发.我们对相关文献进行了回顾,强调了我们发现的意义。
    结论:此罕见病例突出了PNET切除后PRRT和SSA最初无法切除的多发性肝转移的病理完全缓解,表明它们作为不可切除的PNET的多模态治疗选择的潜力。
    BACKGROUND: Peptide receptor radionuclide therapy (PRRT) serves as a novel and effective treatment option for somatostatin receptor-positive unresectable liver metastases of pancreatic neuroendocrine tumors (PNETs). However, there are few reported cases of surgical resection for initially unresectable liver metastases of PNET that were converted to resectable after PRRT. Here we report a case where PRRT and somatostatin analogs (SSAs) led to a pathological complete response of initially unresectable multiple liver metastases following PNET resection.
    METHODS: A 52-year-old man underwent pylorus-preserving pancreaticoduodenectomy for PNET at age 40 and subsequent hepatectomies for resectable liver metastases at 44 and 47 years of age. At age 48, a follow-up examination revealed unresectable multiple liver metastases, and PRRT with 177Lu-DOTATATE therapy was initiated. After four cycles of PRRT, most liver metastases diminished according to imaging studies, and the remaining two hepatic lesions continued to shrink with additional lanreotide. Conversion surgery for liver metastases was successfully performed, revealing no viable tumor cells in tissue specimens. Seventeen months after surgery, imaging showed no detectable residual tumor or recurrence. We present a review of the relevant literature that highlights the significance of our findings.
    CONCLUSIONS: This rare case highlights the pathological complete response of initially unresectable multiple liver metastases achieved by PRRT and SSAs following PNET resection, suggesting their potential as a multimodality treatment option for unresectable PNET.
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  • 文章类型: Case Reports
    自1930年代以来,克里米亚半岛就已在临床上诊断出地中海斑点热(MSF)。我们描述了一名来自克里米亚的老年患者最近的疾病,他出现了由发烧组成的无国界医生症状的经典三联症,斑丘疹,和焦痂。使用实时PCR和4个立克次体蛋白基因的测序证实立克次体病的临床诊断。引起临床疾病的菌株的特征是conorii立克次体亚种conoriiMalish7。该报告证实了焦痂拭子材料作为基于PCR的诊断的DNA来源的实用性,从而能够及时治疗和管理患者。
    Mediterranean spotted fever (MSF) has been diagnosed clinically in the Crimean Peninsula since the 1930s. We describe the recent illness of an elderly patient from Crimea who had developed a classic triad of MSF symptoms consisting of fever, maculopapular rash, and eschar. Clinical diagnosis of rickettsiosis was confirmed using real-time PCR and sequencing of 4 Rickettsia protein genes. The strain causing clinical illness was characterized as Rickettsia conorii subspecies conorii Malish 7. This report corroborates the utility of eschar swab material as a source of DNA for PCR-based diagnostics that enables timely patient treatment and management.
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